YASKAWA Z1000 User Manual page 166

4.13 Advanced Drive Setup Adjustments
Frequency Reference 1 (set in b1-01)
Frequency Reference 2
(d1-02 or input terminal A1, A2)
Frequency Reference 3
(d1-03 or input terminal A1, A2)
Frequency Reference 4 (d1-04)
Jog Frequency Reference (d1-17)
<1> The Jog frequency overrides all other frequency references.
n d2-03: Master Speed Reference Lower Limit
Sets a lower limit as a percentage of the maximum output frequency that will only affect a frequency reference entered from
the analog input terminals (A1 or A2) as the master speed reference. This is unlike parameter d2-02, which affects all frequency
references regardless of their source.
Note: When lower limits are set to both parameters d2-02 and d2-03, the drive uses the greater of those two values as the lower limit.
No.
d2-03
n d3-01 to d3-04: Jump Frequencies 1, 2, 3 and Jump Frequency Width
The Jump frequencies are frequency ranges at which the drive will not operate. The drive can be programmed with three
separate Jump frequencies to avoid operating at speeds that cause resonance in driven machinery. If the speed reference falls
within a Jump frequency dead band, the drive will clamp the frequency reference just below the dead band and only accelerate
past it when the frequency reference rises above the upper end of the dead band.
Setting parameters d3-01 through d3-03 to 0.0 Hz disables the Jump frequency function.
No.
d3-01
d3-02
d3-03
d3-04
Figure 4.33 shows the relationship between the Jump frequency and the output frequency.
166
Table 4.24 Multi-Step Speed Reference and Terminal Switch Combinations
Reference
<1>
Frequency
reference
FWD (REV) Run/Stop
Multi-step Speed Ref. 1
Multi-step Speed Ref. 2
Jog Reference
Figure 4.32 Preset Reference Timing Diagram
Parameter Name
Master Speed Reference Lower Limit
Parameter Name
Jump Frequency 1
Jump Frequency 2
Jump Frequency 3
Jump Frequency Width
Multi-Step Speed
H1-oo = 3
OFF
ON
OFF
ON
−
d1-04
d1-03
d1-02
(A2)
d1-01
(A1)
d1-17
ON
ON ON
ON
ON
YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
Multi-Step Speed 2 Jog Reference
H1-oo = 4
OFF
OFF
ON
ON
−
Time
Setting Range
0.0 to 110.0%
Setting Range
0.0 to 240.0 Hz
0.0 to 240.0 Hz
0.0 to 240.0 Hz
0.0 to 20.0 Hz
H1-oo = 6
OFF
OFF
OFF
OFF
ON
Default
0.0%
Default
0.0 Hz
0.0 Hz
0.0 Hz
1.0 Hz